The key of G♯ minor
G♯ A♯ B C♯ D♯ E F♯
5 sharps: F♯ C♯ G♯ D♯ A♯. Relative major: The key of B major.
The triads of the key
i G♯m | ii° A♯° | III B | iv C♯m | v D♯m | VI E | VII F♯ |
The seventh chords
i7 G♯m7 | iiø7 A♯m7♭5 | IIImaj7 Bmaj7 | iv7 C♯m7 | v7 D♯m7 | VImaj7 Emaj7 | VII7 F♯7 |
In practice the V of a minor key is almost always major, taken from the harmonic minor: D♯7 (V7), which carries the leading tone F𝄪.
G♯ natural minor scale
Open it in the app: 6. Harmony, in G♯